package com.urfresh.sp.flume.util;

import com.urfresh.sp.flume.avro.Client;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.security.MessageDigest;

/**
 * Created by urfresh.mark on 2016/10/9.
 */
@Component
public class Util {


    Logger logger = LoggerFactory.getLogger(Util.class);

    @Autowired
    Client client;

    public final static String getMessageDigest(byte[] buffer) {
        char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
        try {
            MessageDigest mdTemp = MessageDigest.getInstance("MD5");
            mdTemp.update(buffer);
            byte[] md = mdTemp.digest();
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for (int i = 0; i < j; i++) {
                byte byte0 = md[i];
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(str);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }


    /**
     * 获得客户端ip
     *
     * @param request
     * @return
     */
    public String getIpAddr(HttpServletRequest request) {
        return request.getRemoteAddr();
    }


    public static void main(String[] args) {
        System.out.println(getMessageDigest("OSHTJJUQ".getBytes()));
    }
}
